2006 6.0L new oil cooler and EGR cooler still getting high EOT/ECT deltas?? - Ford Powerstroke Diesel Forum
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Old 07-07-2014, 03:29 PM
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2006 6.0L new oil cooler and EGR cooler still getting high EOT/ECT deltas??

2006 6.0 with 118,000 miles. Do to large deltas from Scan gauge II read out, First I did the coolant flush (restore/restore+/distilled water) and replaced with ELC red coolant. I recently replaced both oil and egr coolers and IPR valve, did the freeze plug block on the EGR cooler.
Since then pulling the 5th wheel the EOT was hitting 235 at times. deltas where hitting 18??? With out any exhaust entering the EGR cooler anymore, shouldn't the temps be down? Are the "normal" temps and deltas different with EGR blocked?
Gettng the P0401 code from the lack of EBP.
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Old 07-07-2014, 03:38 PM
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Towing you can't get a good reading for the health of your oil cooler. How is it running flat at 65 for 15-20 minutes? Also, what brand oil cooler did you use?
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Old 07-07-2014, 03:40 PM
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Towing deltas are irrelevant for determining oil cooler health. Do the test in the post above unloaded and empty.
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Old 07-07-2014, 03:48 PM
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Also is it a oem oil cooler or a high flow after market? The high flow ones have higher deltas because they dont cool the oil down as well.
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Old 07-07-2014, 04:30 PM
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bought a kit from CNS engine parts on Amazon. asked them and they say its a CNS made in China. unloaded, flat highway at 65 the deltas are never above 8.
maybe the scan gauge has me paranoid??
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Old 07-07-2014, 04:33 PM
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CNS made in China is codeword for "We screwed you and sold you a royal piece of garbage."
Why, in gods name, would you buy crappy NON-OEM parts for something expensive to get to?
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Old 07-07-2014, 04:39 PM
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Spent weeks researching and watching youtubes to do it myself. read countless forums and using a non oem part for the oil cooler never came up! kicking my self!!! So do they ever work are they all crap?
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Old 07-07-2014, 04:41 PM
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Well, sorry to say but that unit you installed is probably not worth the metal it's made out of. Sadly if it isn't OEM for the oil cooler it just isn't quality. Unless it's the BPD system of course.

It will work maybe, depending on the gasket, but the deltas won't be nearly as good as you can get with OEM.
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Old 07-07-2014, 04:54 PM
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All oil coolers made in China = crap
You couldn't have done much reading here, (try search for oil coolers, you'll see what I mean) or read the whole procedure (including torque values and tips) in my signature line.
There is also a sticky on this site (same as the link in my sig).
The problem is that there are fewer (up to 4) passages in the chinese knock-off parts. That means higher oil temps. The more of a load you place on the engine, the higher resulting oil temp.
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Old 07-07-2014, 04:55 PM
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and with the exhaust blocked off with the freeze plug, the coolant should be running cooler into the oil cooler?
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